How to start BIW design using styling data

dinesh

15 Dec, 2016 06:26 AM

In this tutorial my intention is to create rough envelop of BIW of front hinge near the door part. THis tutorial uses styling data which is class A surface.

1. Step 1:

   This is an extract of class A data . The process will show you how to develop biw sheet metal from simple cad data
   

   

2. Step 2:

   Create a pad of 100mm in upward direction
   

   

3. Step 3:

   Apply a draft angle of 5 degree on side face as shown below
   

   

4. Step 4:

   Apply a draft of angle 6 degree on front face as shown below
   

   

5. Step 5:

   generate a variable fillet which vary linearly from 80 to 100mm
   

   

6. Step 6:

   Insert a body named STEP and create a sketch as shown below
   

   

7. Step 7:

   Using sketch profile produce a PAD of first limit=50mm secound limit=260mm
   

   

8. Step 8:

   Define the work object in to the main body. Generate a extrude from tyre profile. Generate split as shown below
   

   

9. Step 9:

   Create a split planes as shown below
   

   

10. Step 10:

    Create a split planes as shown below
    

    

11. Step 11:

    Define body STEP as work object. Now try to split the STEP with both the plane. The resultant geometry in shown as below.
    

    

12. Step 12:

    Create a new body named STEP FLANGE. Using position sketch orient as show below
    

    

13. Step 13:

    Use project 3D elements and generate a profile as show below
    

    

14. Step 14:

    Using the generated profile pad it for 35mm

15. Step 15:

    Use thickness option and select the face as shown below and apply a value of 1.5mm
    

    

16. Step 16:

    Apply chamfer of length.1/length.2 as 1 mm & 2.5mm
    

    

17. Step 17:

    using boolean operations add STEP FLANGE body to STEP

18. Step 18:

    Create a plane using offset from face and offset value as 0mm
    

    

19. Step 19:

    Split the entire part body using the generated plane
    

    

20. Step 20:

    Apply shell of 1mm thickness to selected faces as shown below
    

    

21. Step 21:

    The BIW envelop of Fron hinge is shown below
    

    

22. Step 22:

    In the process of develop Biw you to define the physical relationship between designed component & mating part using typical section which design allowable tolerances as shown below.